Door hold open and controlled release mechanism

Abstract

A door hold open and controlled release mechanism is designed for usage in a doorway system having an inner door, an outer door and a door closer. It includes a catch mechanism and a catch release mechanism. The catch mechanism holds the outer door, typically a screen door or storm door, in an open position against the closing tendency of the door closer. Movement of the inner door to an open position then toward a closed position triggers the catch release mechanism which allows the outer door to close under the urging of the door closer.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to a door closer mechanism adapted for usage in conjunction with a first door mounted in juxtaposition with a second door such as a screen door mounted with an entry door of an edifice or house. More specifically, the present invention relates to a door hold open and controlled release mechanism for use with a two-door arrangement, the mechanism comprising a catch mechanism for holding the first door open and a catch release mechanism for closing the first door upon the closing of the second door.[0003]2. Description of the Related Art[0004]Door closers sold for use with screen doors or storm doors are typically in the form of a cylinder with an axially extendable rod, which is biased toward retracting by an internal coil spring and damped pneumatically or hydraulically. In order to hold the door in an open position a manual latching feature is generally provided in the form of a tab through which...

AI Technical Summary

Benefits of technology

[0015]In another embodiment, the catch member further comprises a second ramp section and the catch release mechanism further comprises a wedge, the second ramp section and the wedge being arranged such that when the catch release mechanism is moved the wedge engages the second ramp section thereby causing deflection of the catch member thus allowing release of the door closer rod from the hold section of the catch member. In yet another embodiment, the catch release mechanism further comprises a joint and a stop wherein the joint is biased toward a stopped position, so that as the catch release mechanism is moved in one direction the joint flexes and the catch release mechanism does not engage the catch second ramp but as it is moved in an opposing direction it is prevented from flexing by its stop and does cause the wedge to engage the catch second ramp allowing release of the door closer rod. In another embodiment the point at which the catch member restrains the door is adjustable by means of changing the mounted orientation of the housing.

Problems solved by technology

These operations are cumbersome and inconvenient and especially so when carrying packages.

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